Elevator-indicator.



P. A. BOEDTCHER.

ELEVATOR INDICATOR.

APPLICATION FILED APR. 27, 1912.

Patented Aug. 2'7, 1912.

l/VVE/VTOR Franz A. Boedfcher nrr FRANZ A. BOE DTCI-IER, OF BERGENFIELD, NEW JERSEY.

ELEVATOR-INDICATOR.

Specification of Letters Patent.

Patented Aug. 27, 1912.

Application filed April 27, 1912. Serial No. 693,675.

To all whom it may concern:

Be it known that I, FRANZ A. BOEDTCHER, a citizen of the United States, and a resident of Bergenfield, in the county of Bergen and State of New Jersey, have invented a new and Improved Elevator-Indicator, of which the following is a full, clear, and exact description.

This invention relates to improvements in elevator indicators, and has for an object to provide an improved operating structure therefor.

A further object of the invention is to provide an operating structure for an elevator indicator constructed with a reciprocating operating member designed to engage a friction wheel and to be connected with a vertically moving shaft or cable whereby the indicator is operated in proper timed relationship to the movement of the elevator.

A further object of the invention is to provide in an elevator mechanism a friction drive for operating the pointer of the indica'tor.

In carrying out the objects of the invention, an indicator is provided which is formed with the usual pointer and the usual supporting axle therefor. Rigidly connected with this axle is a'grooved wheel designed to carry a substantially U-shaped bar arranged to be driven back and forth over a pulley, whereby the pulley is rotated. This reciprocating bar is connected with a pivotally mounted lever'which in turn is connected by a suitable cable to the usual indicator. rod or cable.

A practical embodiment of the invention is represented in the accompanving draw inns forming a part of this specification. in which similar characters of reference indicate corresponding parts 1n all the views.

Figure 1 is a side elevation of an embodi- I ment of the invention Fig. 2 is a section through Fig. 1 approximately on the line 2-2; the operating rod and associated parts being shown in full lines Fig.3 is a section through Fig. 1 approximately on the line- 3-3: Fig. 4 is a detailsectional view at proximately on the line 44: of Fig. 1, the same being shown on an enlarged scale: and Fig. 5 is a section through Fig. 1 approximately on the line 5-5, the same being shown on an enlarged scale.

Referring to the accompanying drawings by numerals, 1 indicates part of the wall or caging of the elevator, in which the indi-.

cator is attached, and may be formed in any desired manner so as to accommodate the usual dial 2, held in place by a sleeve 3. The sleeve 3 carries the usual shaft 4 having connected therewith a pointer 5. Rigidly secured to one end of the shaft 4, preferably the inner end, is a pulley 6 which is grooved so as to accommodate a substantially U- shaped bar 7. The bar 7 is constructed pref- -erably straight from points 8 to 9, and also from 10 to 11. However, it will be evident that the bar could be bowed from these points to a certain extent, the only limitation being that between the points 8 and 9 the bar is adapted to press at different times against the pulley 6 for rotating the same. The bar 7 between the points 10 and 11 is designed to merely engage the sides of the groovedpart of the pulley so as to guide the bar 7 in its reciprocatory movement and to hold the bar in proper position. The bar 7 is shown round in cross section, but it will be evident that any other desired shape secured to the bar 7 by any desired means,

as for instance a. set screw. The lever .17 is adiustablv clam ed to a nivotallv mounted weig t 18 which acts also as a lever for swinging the lever 17. The weirrht .18 is 'f nned with a depressed portion 19 against which presses one end of the plate 20 held in place by o'clnmpin screw 21. The plate 20 also presses against the lever 17 for firmly clamping the same to the weiq-ht 18. By loosening the screw 21 the lever 17 may In operation as thc'elevator moves up the same causes the rod or cable 26 to move upwardly, whereupon the chain or cable 23 is pulled longitudinally. This will raise the weight 18 pivotally and will give a pivotal or swinging movement to the lever 17 whereby the bar 7 is pushed or forced longitudinally and as the same moves, the pulley or grooved wheel 6 will be rotated. This Wlll cause the proper rotation or movement of the pointer 5. Upon a reverse movement of the elevator,'the' indicator bar or cable 26 will be given a reverse movement and as the same moves downwardlythe chain or cable 23 is allowed to move downward under gravity, under the action of the weight 18 which will also pull on the lever 17 for reversing the movement of the bar 7 and the associatedmechanism. his will restore the pointer 5 to its original position as soon as the elevator has reached its original position. From this construction and arrangement it will beseen that the pulley or grooved wheel 6 is operated by the friction of the bar 7. If it is found desirable the plate 12 could be made comparatively heavy so' as to give a proper frictional engagement between the-bar 7 and the wheel or pulley 6. Having thus described my invention I claim as new and. desire to secure by Letters Patent:

1. In a device of the character described, the combination with a pointer, of a friction wheel connected therewith, a reciprocating bar resting on said friction wheel for rotating the same the weight of said reciprocating bar causing a sufficient frictional engagement between the same and said friction wheel for causing the frictio'n wheel to rotate upon the movement of the bar, and power transmitting mechanism connected with said reciprocating bar and the indicator ,rod of an elevator for operating said reciprocating bar.

2. In an elevator indicator, the combination with a pointer, of a friction wheel rigidly connected therewith so that when said friction wheel is rotated said pointer will be correspondingly moved, a driving member frictionally engaging said friction wheel. a pivotally mounted lever for operating said driving member, and means for connecting said pivotally mounted lever with the indicator rod of an elevator whereby when said elevator is moved power will be transmitted to said wheel for moving said pointer.

, 3. In an indicator for elevators, the com; bination with an indicating pointer, of a friction wheel connected therewith, a reciprocating bar adapted to engage said friction wheel for rotating the same, a-pivotally mounted lever for moving said reciprocating bar, aweight for normally holding. said lever in one position, and means for connecting said weight with the indicator rod of an elevator whereby when said elevator. is moved said rod and said friction wheel will be correspondingly moved for causing said pointer to properly indicate the position of the elevator.

4. In an elevator indicator, the combination with an indicating pointer, of a friction wheel connected therewith for operating the same, a reciprocatin bar contacting with said friction wheel for moving the same, a pivotally mounted-lever for operating said-bar,a pivotally mounted weighted member for operating said lever, a clamp for adjustably clamping said lever to said pivotally mounted weighted member, and means for connecting said pivotally 'mounted weighted member to the indicator rod of the elevator with which the indicator is associated whereby when said'rod is moved in one direction said weighted member will be raised and the parts connected therewith will be moved for shifting the position of said pointer and when said indicator rod is lowered said weighted member will be permitted to move. pivotally downward and move the parts connected therewith in a re verse direction.

5. In an elevator indicator, the combinationwith an indicating pointer, of a grooved friction wheel connected therewith, a bar engaging said friction wheel in said groove, a pivotallymounted lever connected with said bar for reciprocating the same and thereby rotating said wheel for moving said indicating pointer, and means for connecting said lever with the indicator rod of the elevator for moving the lever and associated parts.

6. In an indicator for elevators, the combination with an indicating pointer, of a grooved wheel connected with said pointer for moving the same, a substantially U- shaped reciprocating bar arranged so that part of the same will rest on said wheel in said groove and part of the'same will be loosely positioned in said groove on the opposite side of the wheel whereby the rod is guided in said reciprocatory movement and held properly in place, a lever for moving said bar, means for normally holdingsaid lever in one position, and means conname to this specification in the presence of nected with the indicating rod of said eletwo subscribingwitnesses.

vator for moving said levert-o another )0- sition whereby said rod is operated and rilo- FRANZ BOEDTGHER' 5 tion is' transmitted to said indicating Witnesses:-

pointer. WALTER CHRISTIE,

In testimony whereof I have signed my GEORGE BRIBAOHER. 

